Tilting door



May 18,. 1937.

E. WANNER 2,80,904

TILTING DOOR Filed Dec. 20, 1955 EDMOND WANNER INVENTOR= Patented May 18, 1937 PATENT OFFICE TILTING DOOR Edmond Wanner, Geneva, Switzerland Applieation December 20, 1935, Serial No. 55,323 In Switzerland May 17, 1935 3 Claims.

The invention relates to a tilting door, intenoled more particularly for sheds, having side posts widely separated from each other.

The door according to the inventon is characterized in that it is braced by means of an exte rior girder, so disposed that in the open position. in which the door panel takes an approximately horizorital position under the spring-beam, the latter is situated in one of the two dihedrons formed by the panel with its girder.

The drawing shows two embodiments of the subject of the invention, given by way of example.

Figs. 1 and. 2 each represents one of said. embodiments, in cross section, the section being taken on a plane perpendicular to the plane of the opening closed. by the door.

In Fig. 1 the upper part I shows part of the truss of the roof of the shed, the slope of which is so directed. that the highest part of the roof is above the spring-beam 2 while the gutter is on the rght, in the position shown.

The tilting door consists of a panel 3 intended to obturate the free space between the ground, the side posts and the spring-beam of the shed.

The distance between the side posts is supposed to be relatively great, i. e. the shed is supposed to be very wide. 'I'his circumstance necessitates the provision of a door panel forming lengthwise a very rigid girder, as said. panel is intended to come and. lodge approximately horizontally under the spring-beam, in the position shown in dot and dash line at 3 when the door is opened. It is clear that the small binders 4 forming the panel drawn, of relatively small thickness, do not permit of obtaining the necessary rigidity.

Said rigidity could be increased by providing a thicker panel, but this would be to the detriment of the free height of the opening once the door opened, unless the spring-beam be disposed to a 4 certain extent higher thus increasing the total cubage of the construction.

In the example shown, the necessary rigidity of the panel is obtained without increasing the thickness of the latter, by applying to it an exterior box girder 5 integral with the panel, with which said girderiorms two dihedral angles approximately supplementary.

As will be seen in the position in dot and dash line 3, 5 of the open door, it is then easy to bring the girder 5 outside the shed, before the spring-beam, so that the latter comes and lodges in one of the two dihedrons formed by the panel 3 with its girder 5.

Said disposition realizes several advantages.

In the first place, it realizes the advantage of permitting of constructing doors the rigidity of whichpermits of suspending them above relatively long door openings, without the thickness of the door panels and consequently the height lost in the opening of the shed. being in any way 5 exaggerated. In the second place, the arrangement of a girder, such as the girder 5 has the effect of displacing the centre of gravity of the whole door outside the panel, for example to the point 6, and this arrangement permits of a sus- 10 pension by the centre of gravity by means of cables l which are situated outside the shed and of rasing the door vertically along the vertical guides 8 and of bringing without further agency the girder 5 to 5, before the spring-beam. 15

As regards. the arrangement of the counterpoises, connecting bars and levers, guiding the door during its tilting, it is clear that any suitable arrangement may be used, as the invention is not concerned with this part of the problem. 20

While in the example of Fig. 1, the pulleys 9 of the cables supporting the door may be fixed to the shed itself, for example to the side posts of the latter, said possibility is no longer possible in the example according to Fig. 2, in which the slope of the roof 10 is contrary to that represented in the previous example, as at least a part of the water runs in the gutter H fixed. along the sprng-beam. In that case, it is necessary to dispose the pulleys I2 higher than the free part 30 of the roofing of the shed, that is to say at the end. of the sliding guides 13 of the door, said guides having for this reason to form pillars, girders or similar bearers, placed before the side posts, integral with them or replacing them 5 wholly or partially.

The door is here formed by means of a panel I3, divided for example into frames, themselves filled with wood or metallic sheet ron while the girder M is a simple double T-iron. The sus- 40 pension is also eiected here at the centre of gravity I5. As regards the manner in which the door tilts, it may be fiected. in any manner whatever, its opening position being shown in dot and. dash line at I3, I4. 45

What I claim is:-

1. A tilting door for a door opening Wth sde posts spaced a. distance apart and a door header, havng a, transverse reinforcing girder secured.

5 upon sad door intermedate the top and bottom edges thereof, said. door, when open, beng ra.ised in horizontal poston beneath the door header so that said header is disposed within one of the two dihedrons=formed;by sad door and sad m- 10 nforcnggirder and. said nopanc1 bottom= edges of the door are free.

the door tilts upon a, pvotal mountng havng ts axis spaced a. dstance from the door proper upon the same side of; the lat1zer wththe ginder and dsposecl wthin the outlnao f said ginder;

EDMOND WANNER. 

